Explanation of single-acting and double-acting reciprocating pumps, how to choose them, and what are the differences
Thread Content
Dear friends from Sichuan, could anyone help explain the single-acting and double-acting types of reciprocating pumps? Under what circumstances are single-acting pumps used, and under what circumstances are double-acting pumps used? If possible, please include a picture; thank you in advance!
The working principle of reciprocating pumps and reciprocating compressors is essentially the same: one back-and-forth movement of the piston (plunger) constitutes one working cycle. In one working cycle, the pump draws in and discharges liquid once each. This type of pump is called a single-acting pump; during one working cycle, it draws in and discharges liquid twice. This type of pump is called a double-acting pump.
If, in one working cycle, the pump draws in liquid once but discharges it twice, or if it draws in two amounts of liquid but discharges it once, is this also considered a double-acting pump? Thank you!